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PG TRB Maths Previous Year Question Papers

TRB Model Questions
 
9. In a parabola the chord passing through the focus and perpendicular to the axis is called
 
  • A. Focal chord
  • B. Focal distance
  • C. Latus Rectum
  • D. None of these
Answer: C.
Latus Rectum
 
10. Binomial distribution applies to
 
  • A. impossible events
  • B. three events
  • C. repeated two alternatives
  • D. rare events
Answer: C.
repeated two alternatives
 
 
11. The tangents at the extremities of a focal chord of a parabola
 
  • A. are parallel
  • B. intersect on the directrix
  • C. intersect at right angles on the axis
  • D. intersect at right angles on the tangent at the vertex
Answer: B.
intersect on the directrix
 
12. The order of the smallest non abelian group is
 
  • A. 3
  • B. 4
  • C. 5
  • D. 6
Answer: D.
6